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UNITED STATES PATENT EETCE..

EDWIN NORTON AND JOHN Gr. HODGSON, OF CHICAGO, ILLINOIS, ASSIGBL ORS TO SAID NORTON AND OLIVER W. NORTON, OF SAME PLAGE.

CAN-ENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 274,363, dated March 20, 1883.

Application filed October 13, 1882. (No model.)

To all whom, it may concern:

Be it known that we, EDWIN NoRToN and JOHN G. HODG-SON, citizens of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Gau-Ending Machines, of which the following is a specification.

This invention relates to machines for applying the heads or ends upon sheet-metal cans, and more particularly to certain improvements upon the machine invented by said Edwin Norton, and for which anapplicatiou for Iletters Patent has been heretofore filed by him under date of J une 24, 1832.

In the present invention a revolving wheel is employed, upon the periphery of which the tixed halves of themold forclamping and sizing the can-bodies are mounted, and which is intermittingly rotated and locked in position to bring the half-moldsr alternately in front of a cross-head, upon the end of which the movable half ot' the mold is secured, the cross-head being also intermittingly operated so as to clasp and hold the can-bodyin the mold. The cans are fed into the halt-molds from a suitable chute, and are held therein while the wheel is being rotated to carry the can in front ot' the reciprocating half-mold by means oi' a curved guard, which extends around the wheel from the feed-chute to near the discharge-chute, the movable reciprocating part of the mold being provided with a central slot i'or the guard. Transverse pistons-one at each end of the mold--are provided for forcing the can ends or 4heads upon the can-body. The can-heads are supplied from chutes, and are support-ed in the chute on the piston or a projection thereon while the heads are being applied to the can body, and when the pistons are drawn back another head falls down in front of each piston, so that the feeding ot' the can-heads to the machine is automatic.

In the accompanying drawings, forming part of this specification, Figure l is a plan view of a machine embodying our invention. Fig. 2

' is a side elevation. Fig. 3 is a section on line 3 3 of Fig. l. Fig. 4 is a detail view of halt'- mold wheel. Fig. 5 is a detail View of thecams and device for operating the reciprocating half-mold. Figs'. 6, 7, S, and 9 are details ot parts hereinaftersmore fully described.

In the drawings, A represents the main frame ofthe machine. The iixed halimolds b are secured upon the peripher57 of a wheel, B, having its shaft B suitably journaled in bearings B2 on the main frame of the machine. Curved braces et extend between the adjacent halt'- molds at each end, to support the can-bodies in the supply-chute O as the wheel revolves. The movable halt' b of the mold is secured to the end of a cross-head, D, which reciprocates in suitable gibs, D', secured to the main frame y of the machine.

E is a curved guard, extending from the supply-chute G to the discharge-chute F, for the purpose of holding the can-bodies in the halimolds while the wheel revolves. This guard extends down in front of the halimold on the cross-head, the central portion of the mold being cut ont, forming a slot, e, therein, for the guard to tit in when the half-mold is moved forward to clasp the can. p

G and G are the feed-chutes for the canheads-oneoneach side of the wheel or at each end of the mold.

H and H' are two pistons provided with disks or piston-heads It itk-one on each side of the mold-mounted in suitable guide-blocks, H2 H3, and secured adjustably to the sliding cross-heads ElM1 H5, whereby the pistons are rcciprocated to force the can-heads upon the canbody clasped in the mold. The piston-heads h h are made thick enough or provided with projections h2 for supporting the can-beads in the feed-chutes while the pistons are moved forward to press the can ends upon the body. When the piston moves back the canheads drop down, so that one can-head aga-in comes in front of the piston-head, thus feeding the can-heads automatically.

K' and K are stationary guides-one on each side of the wheel, just above or outside the circumferential line of the half-molds. These guides are somewhat tapering, or approaching each other near the reciprocating half-mold, and serve the purpose of slipping or centering the can-body endwise accurately to the middle ot' the mold before being clamped therein.

The wheel B is intermittingly rotated by means of the swinging arm L, provided with a spring-pawl, Z, which en gages with the ratchet wheel l,and which is operated by means ot the pitmanrod Z2, crank-arm Z3, shaft Z4, and crank- ICC 2 end .acc

arm Z5, rod Z6, and drive-wheel Z7 on the shaft M. The wheel B is locked in position while the can-headsare being applied to the canbody by means of the spring-catch m, which en gages with the notches m in the check-wheel m2 on the shaft B. The spring-bolt m is retracted to permit the wheel to revolve 'by a cam, m3, on the swinging arm L impinging on a projection or roller, m4, on said bolt when said arm L makes its backward stroke.

The cross-head D, to which the reciprocating half-mold is secured, is given its forward stroke by means ofa cam, N, on the shaft M,

' which works against anti-friction roll it on the cross-head D. While the circular face or part of the cam N is passing the roller n the heads are applied to the can-body, the circular part of the cam holding` the molds closed at this time. The cross-head D is given its backward stroke by means of a cam, N', also on the shaft M,whicl1 works against a roller, u', on the small cross-head n2, and which is connected withthe cross-head D by means of the bar n3.

N2 are the gibs in which the cross-head n2 slides.

The pistons for forcing the heads on the canbodies are each actuated from a shaft, O, on either side of the machine, through the wheel o, provided with crank-arm o and slotted links o2 o3, connected with cross-heads H4 and H5. The object of the slotted links o2 o3 is to give time for an end to drop in front of the piston while the piston-head is staudingstill, and also to allow the reciprocating half-mold to clamp the can-body before the ends are pushed on; and the links 02 o3 being slotted, as shown, they may both b'e connected to or operated from the same wheel or disk, the slot in the one link permitting the cross-head to be alternately operated by the other. The slot in one of the links o2 03-the one which retracts the crossheadis abouttwicethelength ofthe slot in the other link, or the one which forces the Vcross-head forward to apply the head to the can-body. During the first quarter of the revolution of the disk o, supposing the parts in f the position shown in Fig. 8, the link o3 drives the cross-head H4 or H5 forward the requisite distance to force the'can end upon the canbody, and at the same time the link o2 slips back on the pin in thecross-head thefull length of thelong slot in said link,the cross-head havin gmoved forward half the length of said slot, and the link itself having been pulled back the remaining half-length of said slot by the said quarter-revolution of the disk. During the next quarter-revolution `of the disk the link o2 pulls the cross-head back the length of its stroke, permitting a can end to fall in front ofthe piston, and during the next or remainin g half-revolution of the disk. the crosshead remains stationary, giving time for the turret or half-mold wheel to revolve and for the can to be clamped in position by the reci procatin g half-mold. During this remaining half-revolution of the disk o, while the crosshead is stationary, the link o3 slips rst back and then forward on the pin in the-crosshead the full length of its slot, and the link o2 slips forward the full .length of its longer slot, so that the parts are again brought into the original position shown in Fig. 8. By this means it will be observed that the cross-head begins to retract immediately after it makes its forward stroke, soas to release the can as soon as the ends areapplied, and allow the halfmold wheel to continue its revolution. Of course it will be understood that the arms o are fixed rigidly to their respectivedisks o, so as not to revolve thereon. The molds are chamfered away or slightly enlarged at either end to permit the ange ofthe head to fit outside the can-body.

The can-heads `are delivered to the chutes G G by Acarriers P P', or the chutes G G maybe curvedor inclined, so that the can-heads will roll into the same on their edge, if preferred.

T is the drive wheel or pulley ot' the machine, on the main shaft il". Gears t t communicate motion to the shaft M, and bevelgears tts communicate motion to the shafts 0.

S isa friction-wheel applied to the shaft B', to steady the revolution of the wheel `B and prevent jarring infstopping the saine.

The cans are discharged from the mold by means of a plug, V, which is held retracted b v a spring, o', until the half-mold reaches the position shown in Fig. 4t, when the'pin V, coming in contact with the stationary cam 02, is forced out and ejects the can from the mold into the discharge-chute F. When the reciprocating half-mold is drawn back the lower part .of the stationary `curved guard E serves to expel or strip the cans from reciprocating half-mold. Other devices, however, mayY beV ICO employed for preventing the cans clinging to the reciprocating half-mold when it is withdrawn.

It should be observed that the cross-head D may be adjusted to regulate the pressu-re of 1ro the reciprocating half-mold upon the can-body.

Y is a retaining spring-pin in the chutes G Gf, for preventing the heads falling out of position When they drop .down in front of the pistons. v

It will be observed that the feed of the canbodies to the machine is automatic. At every forward motion of the wheel a can-body from the chute C 'drops into one of the halfmolds on the wheel as into a pocket.

The. can-bodies a's they are delivered to the machine are often more or less bent or dented out of true cylindrical shape, and frequently vary somewhat in their size or exterior diameter, owing to variations in thicknesses of the stock from which they are made and irregularity in soldering, or other causes.

p rlhe function of the mold orclamping device is not only to hold thecan-body while the head or heads are being applied, but to size it and make its shape correspond accurately to the form of the can-heads to be applied; and by use of the term sizing in this specification we wish to be understood as meaning IIS truing the shape or form of the can-body to lit the can-hcad as Well as compressing the same so to fit Where necessary.

We claim- 1. In a machine for heading cans, the combination of a device for applying the head to the can-body with a. device for seizing and clamping the can-body while the head is being applied, consisting of an intermittinglyrevolving wheel provided with a series of halfmolds upon its periphery, and a reciprocating half-mold mounted on the stationary hed or frame-Work of the machine, substantially as specified.

2. The combination of an intermittingly-revolving wheel provided with half-molds upon its periphery with a curved guard for holding the can-bodiesin the half-molds, and a reciprocating haliinold provided with a transverse slot or opening for -said guard, substantially as specified.

3. The combination ot' a wheel having halfmolds upon its periphery, a chute for delivering the can-bodies thereto, a curved guard, and a reciprocating half-mold provided with a slot or openin g for said guard, whereby the cambody may be clampedin the mold without causing the guard to indent or press against the can-body, substantially as specified.

t. The combination of the half-mold wheel, chute for can-bodies, guard, movable halfrnold, can-head-snpply chute, and piston for forcing the can-head upon the can-body, substantially as specified.

5. The combination, with a can-body-clamping device, of achute `for automatically deliverin g the can-heads at the mouth of thesame, and a piston for applying said heads to them, having a thick head or projection for supporting the canheads inthe chute while said piston makes its forward stroke, substantially as specified.

6. The combination of the can-body-clamping device or mold with a chute for the canheads, a reciprocating head or piston at the base of said chute for automatically feeding the can-heads to the mouth of the mold and applying the same to the can-body, and a -spring pin or device for holding the can-head in position at the mouth of the mold, substantially as specified.

' 7,. The combination of the delivery-chute Wheel having half-molds upon its periphery, re-

ciprocatin g half-mold, chute for the can-heads,

piston for applying the same to the can-bodies,

ng discharging-chute, substantially as speci- 8. The combination, with a wheel having half-molds upon its periphery,'provided with plugs for ejecting theV can therefrom ot a reciprocating half-mold provided with a device for stripping or ejecting the can therefrom as the half-mold is Withdrawn, substantially as specified.

9. The combination,with the shaft B', of the swinging arm L journaled on said shaft, and provided with pawl l andv projecting cam m3, reciprocating pitman i2, ratchet-wheel l', checkwheel fm2, provided with notches m', and spring check-bolt in, provided with roller m4, substantially as specified.

10. The combination of a wheel having halfmolds upon its periphery, a device for delivering the can bodies thereto, curved guard, guides for centering the can-bodylongitndi nally in the mold, a reciprocating half-mold, chutes for the can-heads, and a piston at each end of the mold for applying both heads to the can-body simultaneously, substantially as specied.

11. The combination of a wheel having halt'- molds upon its periphery, mechanism for intermittingly rotating and locking said Wheel in position, a half-mold secured to a cross-head reciprocating in a line passing through the axis of said wheel and the center of the halfmold thereon when the Wheel is held stationary, and a piston at each end of the mold for applying the heads to the can-body when clamped therein, substantially as specied.

12. The combination of a can clamping mold or device with chute for delivering the can-heads at the mouth of said mold and a carrier for deliveringthe same to said chute, substantially as specified.

13. The combination ot' a wheel having halfmolds on its periphery with a reciprocating half-'mold and a device for stripping the cans from said reciprocating halfmold when it is withdrawn, substantially as specified.

EDY/VIN NORTN. JOHN G. `HODGHSON.

Witnesses:

H. N. MUNDAY, LAWRENCE A. NORTON. 

